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WO1996006986A1 - Systeme de maintien et de haubanage par cables - Google Patents

Systeme de maintien et de haubanage par cables Download PDF

Info

Publication number
WO1996006986A1
WO1996006986A1 PCT/US1995/011381 US9511381W WO9606986A1 WO 1996006986 A1 WO1996006986 A1 WO 1996006986A1 US 9511381 W US9511381 W US 9511381W WO 9606986 A1 WO9606986 A1 WO 9606986A1
Authority
WO
WIPO (PCT)
Prior art keywords
cable
hold down
bracing system
gripping device
building
Prior art date
Application number
PCT/US1995/011381
Other languages
English (en)
Inventor
Peter W. Schuyler
Original Assignee
Schuyler Peter W
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Schuyler Peter W filed Critical Schuyler Peter W
Priority to CA002198738A priority Critical patent/CA2198738C/fr
Priority to AU35079/95A priority patent/AU3507995A/en
Priority to JP50899696A priority patent/JP2002515096A/ja
Publication of WO1996006986A1 publication Critical patent/WO1996006986A1/fr

Links

Classifications

    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
    • E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
    • E04B1/0007—Base structures; Cellars
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
    • E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
    • E04B1/02—Structures consisting primarily of load-supporting, block-shaped, or slab-shaped elements
    • E04B1/04—Structures consisting primarily of load-supporting, block-shaped, or slab-shaped elements the elements consisting of concrete, e.g. reinforced concrete, or other stone-like material
    • E04B1/06—Structures consisting primarily of load-supporting, block-shaped, or slab-shaped elements the elements consisting of concrete, e.g. reinforced concrete, or other stone-like material the elements being prestressed
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04H—BUILDINGS OR LIKE STRUCTURES FOR PARTICULAR PURPOSES; SWIMMING OR SPLASH BATHS OR POOLS; MASTS; FENCING; TENTS OR CANOPIES, IN GENERAL
    • E04H9/00—Buildings, groups of buildings or shelters adapted to withstand or provide protection against abnormal external influences, e.g. war-like action, earthquake or extreme climate
    • E04H9/14—Buildings, groups of buildings or shelters adapted to withstand or provide protection against abnormal external influences, e.g. war-like action, earthquake or extreme climate against other dangerous influences, e.g. tornadoes, floods
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
    • E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
    • E04B1/18—Structures comprising elongated load-supporting parts, e.g. columns, girders, skeletons
    • E04B1/26—Structures comprising elongated load-supporting parts, e.g. columns, girders, skeletons the supporting parts consisting of wood
    • E04B1/2604—Connections specially adapted therefor
    • E04B2001/268—Connection to foundations
    • E04B2001/2684—Connection to foundations with metal connectors
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
    • Y02A50/00—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE in human health protection, e.g. against extreme weather
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S411/00—Expanded, threaded, driven, headed, tool-deformed, or locked-threaded fastener
    • Y10S411/916—Bolt having tension feature

Definitions

  • TECHNICAL FIELD This invention relates generally to building construction methods and apparatus, and more specifically to an improved cable hold down and bracing system that ties building components together or to the ground, providing stabilization and resistance to uplift or overturning caused by wind, ground movement, earthquakes, or similar forces.
  • hold down The devices that are used to secure the shear diaphragms together and to the foundation are referred to as "hold down(s)".
  • the most widely used “hold down” is in the form of a metal "L” shaped bracket, such as that described in U.S. Patent number 4,665,672.
  • "Hold down” brackets are designed to be attached to a vertical framing member above the foundation, and to the foundation at each end of the shear diaphragm. This is typically done by:
  • Rotational and point loading can be absorbed by the framing and shear diaphragms without over stressing the structure. This is attained by restricting the movement of the top corners of the shear diaphragms relative to the foundation, and by preventing separation of the framing members and shear diaphragms.
  • the cable hold down and bracing system of this invention provides a method and apparatus for tying building components together or to the ground, providing 96/06986 PC17US95/11381
  • the inventive system uses a system of cables or rods strung between the foundation or other base and the top corners of any shear diaphragm.
  • the invention's cables are kept under tension regardless of the shrinkage of wooden components, providing evenly-distributed compression on the structure's framing members.
  • any relative movement caused by vertically applied (“uplift”) forces or horizontally applied forces is prevented from the first moment of application, greatly reducing the damage typically attributed to impact loading.
  • This differs from the destructive effect of vertical and horizontal movement on traditional "hold- down” techniques, which cannot adjust to the slack caused by the shrinkage of wood framing, making them highly vulnerable to impact loading stresses.
  • the inventive system may also be used with metal framing instead of wood.
  • the inventive system may be used to secure each shear diaphragm assembly within a structure to adjacent shear diaphragms assemblies; and/or secure the interconnected shear diaphragm assemblies to the structure's foundation. This creates a highly unified, rigid structure capable of resisting uplift and overturning forces.
  • the inventive system maintains an evenly-distributed compression amongst structural framing members over the life span of a structure, regardless of dimensional changes caused by wood and/or increased loads that may be imposed due to earthquakes, soil movement, settling, hurricane, typhoons, or similar forces.
  • the inventive system offers significant advantages over known techniques. These advantages include:
  • the inventive system eliminates impact loads which commonly occur from wood shrinkage; and maintains evenly-distributed compression throughout the structure.
  • the inventive system is applicable to wider range of structures. It can be used to retrofit existing structures with little or no removal of wall coverings; and can be easily installed in mobile homes and modular building structures.
  • the inventive system enables ease of inspection. It can be installed all at once (rather than in phases), reducing requirement for multiple inspections; and it can be inspected after the structure is completed, since primary components are located in the foundation (basement or crawl space) and attic (under the roof) .
  • Fig. 1 is a cutaway side elevation view of a cable hold down and bracing system of this invention, illustrating the components and assembly of the inventive system.
  • Fig. 1 is a cutaway side elevation view of a cable hold down and bracing system of this invention, illustrating the components and assembly of the inventive system.
  • the inventive system may be installed in the following manner:
  • An anchor bolt 36 is embedded in the foundation 16 of the structure, extending through a drilled hole 20 in the mud sill 24. This will serve as the lower securement point for the stranded wire rope 46, which ties the foundation to the top of the shear diaphragm(s) . 2.
  • An anchor bolt strap component 40 which is a rectangular steel box that has a hole through the single thickness short side 40a and a hole through both thicknesses of the double thickness short side 40b, is secured to the mud sill 24 by a nut 32 threaded on the anchor bolt 36 and tightened against a square flat washer with a round hole 28a (washer 28a prevents distortion of the long legs of the anchor bolt strap 40 and provides a seat against which the nut 32 is tightened) .
  • the double thickness short side 40b of the anchor bolt strap component 40 faces the mud sill 24.
  • the anchor bolt strap 40 transmits forces from the anchor bolt 36 to the "dead ⁇ end" cinching device 44a and in turn to the stranded wire rope 46.
  • a "dead-end” device or other cable gripping device 44a comparable in design, function, and strength to that offered by Fargo Manufacturing Company, P.O. Box
  • the stranded wire rope or cable 46 extends through hole 21 in the structure's subfloor 56 and sole plate 60 (which are separated from mud sill 24 by floor joist 48) , and hole 23 in top plates 68 (which are separated from sole plate 60 by vertical framing members 64) .
  • the stranded wire rope 46 is passed up through any other intervening horizontal (or perpendicular) framing members to the last in-line horizontal (or perpendicular) framing member 68 of the shear diaphragm.
  • a flat metal plate 72 with a hole through the center is placed on the top plate 68, and is positioned over the hole 23 that has been drilled through the structure's top plates.
  • a "dead-end” cinching device 44b is inserted over the stranded wire rope 46 and through the hole in the flat metal plate 72.
  • the "dead-end” device transfers the load from the stranded wire rope 46 to the top plate 68, evenly distributing the forces generated by earthquake, wind, or other external forces and restricting any movement of the top of the shear diaphragm relative to the ground or other attachment points.
  • a further "dead-end” device 44c is inserted in one end of a compression spring 80. This assembly is then placed over the stranded wire rope 46 and on the top of the flat metal plate 72. 8. The stranded wire rope 46 is then pulled taut, and force is applied to the top of the "dead-end” device 44c, causing the "dead-end” device 44c to slide down the stranded wire rope 46 to compress the spring 80 against "dead-end” cinching device 44b, keeping “dead-end” cinching device 44b and the metal load spreading plate 72 in direct contact with the structure's top plate 68.
  • the stranded wire rope may be tensioned by pulling the stranded wire rope away from "dead-end" cinching device 44c while simultaneously exerting force against the top of "dead-end” cinching device 44b until the metal spring 80 is properly compressed.
  • This tensioning may be accomplished by any number of existing or specialized tools.
  • the metal spring 80 under constant compression, forces the "dead-end" cinching device 44b down on the cable to the point at which metal load spreading plate 72 remains in contact with the structure's top plate (horizontal framing member) 68.
  • the "dead-end” cinching device 44b has an internal spring that forces the wedges to be repositioned on the stranded wire rope 46.
  • the structure' top plate 68 typically moves away from the foundation.
  • the metal load spreading plate 72 causes the "dead-end" cinching device 44b to grip the stranded wire rope 46, maintaining tension on the stranded wire rope 46 and preventing further movement.
  • This dynamic adaptation resists separation, uplift, and overturning forces.
  • the inventive system can be used to retrofit existing structures using a variety of techniques. The most straightforward technique is as follows:
  • a long-shafted drill bit is inserted into a pipe. (The pilot tip of the drill must be large enough to accommodate the diameter of the pipe) .
  • a hole is drilled through the top plate(s) .
  • the pipe containing the long-shafted drill bit is pushed down through the hole until it comes in contact with a framing member.
  • Another hole is then drilled through the framing member.
  • the process continues until the pipe comes out of the bottom of the last horizontal framing member.
  • the drill bit is then removed and a cable is passed through the pipe.
  • the remaining components of the inventive system are then attached to the top plates and to the foundation, as described previously. Any resulting holes in the roof are then patched.
  • the inventive system When properly installed, the inventive system provides continuous connection (rigidity) between the top of a structure's shear diaphragms and the structure's foundation. This rigidity prevents damage from uplift, downward forces, or overturning forces typically caused by settling of soil, sudden or gradual earth movements, earthquakes, high winds, and hurricanes.
  • the added rigidity provided by the inventive system does not decrease over time, which is a common problem with other standard techniques. As shrinkage or settling occurs within a structure, the invention's components are kept continually under tension, eliminating the loads and stresses that can lead to the failure of a structure when subjected to extreme conditions.

Landscapes

  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Business, Economics & Management (AREA)
  • Emergency Management (AREA)
  • Environmental & Geological Engineering (AREA)
  • Buildings Adapted To Withstand Abnormal External Influences (AREA)
  • Working Measures On Existing Buildindgs (AREA)
  • Joining Of Building Structures In Genera (AREA)

Abstract

Procédé et appareil employés pour attacher ensemble des éléments de construction ou pour les fixer au sol. L'appareil utilise un système de câbles (46) tendus par ressort et bandés entre les fondations (16) et les coins supérieurs d'un diaphragme de cisaillement. Les câbles (46) sont maintenus en tension quelle que soit la rétractabilité des éléments en bois, ceci assurant une compression uniformément répartie sur les éléments d'ossature de la structure.
PCT/US1995/011381 1994-08-30 1995-08-30 Systeme de maintien et de haubanage par cables WO1996006986A1 (fr)

Priority Applications (3)

Application Number Priority Date Filing Date Title
CA002198738A CA2198738C (fr) 1994-08-30 1995-08-30 Systeme de maintien et de haubanage par cables
AU35079/95A AU3507995A (en) 1994-08-30 1995-08-30 Cable hold down and bracing system
JP50899696A JP2002515096A (ja) 1994-08-30 1995-08-30 ケーブル止め及び突張り装置

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US08/298,150 1994-08-30
US08/298,150 US5535561A (en) 1994-08-30 1994-08-30 Cable hold down and bracing system

Publications (1)

Publication Number Publication Date
WO1996006986A1 true WO1996006986A1 (fr) 1996-03-07

Family

ID=23149276

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US1995/011381 WO1996006986A1 (fr) 1994-08-30 1995-08-30 Systeme de maintien et de haubanage par cables

Country Status (5)

Country Link
US (1) US5535561A (fr)
JP (1) JP2002515096A (fr)
AU (1) AU3507995A (fr)
CA (1) CA2198738C (fr)
WO (1) WO1996006986A1 (fr)

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US6151844A (en) * 1997-03-12 2000-11-28 Lazar's Engineering Relative gravity of structures
AU9508298A (en) * 1997-09-24 1999-04-12 Schuyler, Peter W. Hold down device and method
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US6161339A (en) * 1998-08-26 2000-12-19 Hurri-Bolt Inc. Structural tie-down apparatus
US6390747B1 (en) * 1999-09-24 2002-05-21 Alfred Commins Shrinkage compensator for building tiedowns
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US7150132B2 (en) * 2003-08-12 2006-12-19 Commins Alfred D Continuous hold-down system
US6634615B1 (en) * 2000-07-26 2003-10-21 Randy Bick System, kit and method for seismic restraint of large electrical equipment
US6625945B2 (en) * 2000-08-08 2003-09-30 Alfred D. Commins Balanced, multi-stud hold-down
US6862854B1 (en) * 2000-08-14 2005-03-08 Simpson Strong-Tie Company, Inc. Single-piece continuity tie
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US6513290B2 (en) 2000-12-03 2003-02-04 Simpson Strong-Tie Company, Inc. Concentric holdown
US7509778B2 (en) * 2000-12-03 2009-03-31 Simpson Strong-Tie Company, Inc. Automatic take-up device with internal spring
US6843027B2 (en) * 2003-01-14 2005-01-18 William R. Gaddie Cable system and method for wind-resistant buildings
US6904728B2 (en) * 2003-01-14 2005-06-14 Heritage Log Homes, Inc. Log home construction system
US7117647B2 (en) * 2003-02-26 2006-10-10 Pointblank Design Inc. System for constructing log structures
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US7296386B2 (en) * 2004-08-17 2007-11-20 Simpson Strong-Tie Co., Inc. Concentric holdown connection
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US20080060296A1 (en) 2006-09-12 2008-03-13 Espinosa Thomas M Building having a hold down system
US20080115426A1 (en) * 2006-11-16 2008-05-22 John Paul Hawkins Roof load transfer system
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US7905066B2 (en) 2007-04-06 2011-03-15 Simpson Strong-Tie Co., Inc. Automatic take-up device and in-line coupler
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US9394706B2 (en) 2013-10-08 2016-07-19 Simpson Strong-Tie Company, Inc. Concrete anchor
US9163655B2 (en) 2014-01-14 2015-10-20 Kaoru Taneichi Thrust nut
US9428902B1 (en) * 2015-06-12 2016-08-30 Randall John LoFranco Bracket for multi-story buildings
US9938714B2 (en) 2016-03-24 2018-04-10 Omg, Inc. Hinged building shrinkage compensation device
US10745913B2 (en) 2016-03-24 2020-08-18 Omg, Inc. Building shrinkage compensation device with rotating gears
US10533338B2 (en) 2017-05-11 2020-01-14 Katerra, Inc. Connector for use in inter-panel connection between shear wall elements
US10267053B2 (en) * 2017-06-19 2019-04-23 Katerra, Inc. Method and apparatus to minimize and control damage to a shear wall panel subject to a loading event
JP7082462B2 (ja) * 2017-08-17 2022-06-08 センクシア株式会社 アンカー補強構造、アンカー補強方法およびアンカー補強部材
US10870978B2 (en) 2018-03-09 2020-12-22 Cetres Holdings, Llc Reinforced stud-framed wall
RU2733624C1 (ru) * 2019-04-25 2020-10-05 Александр Александрович Мартынов Способ натяжения высокопрочной винтовой арматуры при изготовлении предварительно напряженных перекрытий сборно-монолитных зданий с безригельным каркасом
US11702837B2 (en) 2019-08-01 2023-07-18 Mercer Mass Timber Llc Shear wall assembly
US12117032B2 (en) 2020-04-17 2024-10-15 Columbia Insurance Company Expandable washer

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US5384993A (en) * 1993-11-15 1995-01-31 Phillips; Belton R. Tie down for building structures

Also Published As

Publication number Publication date
JP2002515096A (ja) 2002-05-21
CA2198738A1 (fr) 1996-03-07
AU3507995A (en) 1996-03-22
CA2198738C (fr) 2007-01-02
US5535561A (en) 1996-07-16

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